Transmission power control method and system
First Claim
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1. A method of controlling a transmitting power for a terminal device, comprising the steps of:
- (A) broadcasting from an information receiving node a plurality of transmitting power level (TPL) messages, each of which represents a respective TPL and the respective TPLs are different from one another, wherein each of the plurality of TPL messages is broadcasted at the respective TPL thereof; and
(B) setting a TPL for the terminal device at a minimum one of the TPLs represented by the TPL messages received by the terminal device.
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Abstract
A transmitting power level control method and system are provided, whereby the power of a terminal device in a wireless sensor network is saved and the lifetime thereof is extended. The control method includes the steps of: (A) broadcasting a plurality of transmitting power level (TPL) messages, each of which represents a respective TPL and the respective TPLs are different from one another, wherein each of the plurality of TPL messages is broadcasted at the respective TPL thereof; and (B) setting a TPL for the terminal device at a minimum one of the TPLs represented by the TPL messages received by the terminal device.
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Citations
20 Claims
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1. A method of controlling a transmitting power for a terminal device, comprising the steps of:
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(A) broadcasting from an information receiving node a plurality of transmitting power level (TPL) messages, each of which represents a respective TPL and the respective TPLs are different from one another, wherein each of the plurality of TPL messages is broadcasted at the respective TPL thereof; and (B) setting a TPL for the terminal device at a minimum one of the TPLs represented by the TPL messages received by the terminal device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for controlling a transmitting power, comprising:
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a cluster head receiving a detecting message and broadcasting a plurality of transmitting power level (TPL) messages, each of which represents a respective TPL and is broadcasted at the respective TPL thereof, wherein the respective TPLs are different from one another; and a terminal device receiving the plurality of TPL messages and transmitting the detecting message by setting the TPL for the terminal device at a minimum one of the TPLs represented by the received TPL messages. - View Dependent Claims (10, 11, 12, 13)
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14. A method of adjusting a transmitting power for a detecting device, comprising the steps of:
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(A) determining a successful message transmission ratio (SMTR) of the detecting device by broadcast of messages via an information receiving node, wherein each of the plurality of messages represents a respective TPL and a value of the respective TPL and is broadcasted at the respective TPL thereof and setting the TPL for the detecting device at a minimum one of the TPLs represented by the TPL messages received by the detecting device; and (B) comparing the SMTR with a threshold value, and adjusting a transmitting power level (TEL) of the detecting device according to a comparing result. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification